<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>拖动排序</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
  <h1>拖动排序</h1>
  <div class="group-box"></div>
  <script type="text/javascript" src="./script.js"></script>
</body>
</html>